US10978674B2ActiveUtilityA1

Display apparatus with substrate hole

98
Assignee: SAMSUNG DISPLAY CO LTDPriority: Feb 12, 2016Filed: Jun 5, 2020Granted: Apr 13, 2021
Est. expiryFeb 12, 2036(~9.6 yrs left)· nominal 20-yr term from priority
Inventors:Jonghyun ChoiKinyeng KangSuyeon Sim
H10K 59/873H10K 59/8722H10K 50/844G04B 19/12G06F 3/0445G04B 19/04G06F 3/0412H01L 51/5246H01L 27/3244H01L 2227/323H01L 27/323H01L 27/326H01L 51/5253H01L 51/56H10K 71/00H10K 59/121H10K 59/40H10K 59/12H10K 59/124H10K 59/1201H10K 59/122H10K 50/8426H10K 59/123
98
PatentIndex Score
4
Cited by
56
References
25
Claims

Abstract

A method of manufacturing a display apparatus includes providing a substrate, forming a display unit defining an opening portion in a display region over the substrate, forming a thin film encapsulation layer to seal the display unit, forming a touch electrode over the thin film encapsulation layer, forming a touch insulating film covering the touch electrode such that the thin film encapsulation layer and the touch insulating film are sequentially stacked and formed over the substrate in the opening portion, forming a touch contact hole by removing a portion of the touch insulating film to expose a portion of the touch electrode, and removing a portion of the touch insulating film and a portion of the thin film encapsulation layer formed in the opening portion to expose a portion of the substrate during the forming of the touch contact hole.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A display apparatus comprising:
 a substrate having a hole; 
 a pixel array comprising a plurality of pixels over the substrate, the plurality of pixels arranged around the hole, wherein each of the plurality of pixels comprises:
 a first electrode; 
 a pixel defining layer which includes an opening overlapping the first electrode; 
 a second electrode over the first electrode; and 
 an intermediate layer between the first and second electrodes; 
 
 an encapsulation layer over the pixel array and comprising an organic encapsulation layer and an inorganic encapsulation layer; and 
 at least one dam between the pixel array and the hole, the at least one dam is covered by the inorganic encapsulation layer. 
 
     
     
       2. The display apparatus of  claim 1 , wherein an edge of the organic encapsulation layer is located between the pixel array and the hole. 
     
     
       3. The display apparatus of  claim 1 , wherein the inorganic encapsulation layer comprises a first inorganic layer and a second inorganic layer, the organic encapsulation layer being between the first inorganic layer and the second inorganic layer, and
 wherein a portion of the second inorganic layer is in direct contact with a portion of the first inorganic layer. 
 
     
     
       4. The display apparatus of  claim 3 , wherein a direct-contact region of the portion of the first inorganic layer and the portion of the second inorganic layer is located between the pixel array and the hole. 
     
     
       5. The display apparatus of  claim 3 , wherein a direct-contact region of the portion of the first inorganic layer and the portion of the second inorganic layer is over the at least one dam. 
     
     
       6. The display apparatus of  claim 1 , further comprising a buffer layer over the substrate and below the pixel array. 
     
     
       7. The display apparatus of  claim 6 , wherein the buffer layer comprises an inorganic insulating material. 
     
     
       8. The display apparatus of  claim 6 , wherein the at least one dam is over the buffer layer. 
     
     
       9. A display apparatus comprising:
 a substrate having a hole; 
 a pixel array comprising a plurality of pixels over the substrate, the plurality of pixels arranged around the hole; 
 an encapsulation layer over the pixel array and comprising an organic encapsulation layer and an inorganic encapsulation layer; 
 a first dam between the pixel array and the hole; and 
 a second dam between the first dam and the hole. 
 
     
     
       10. The display apparatus of  claim 9 , wherein an edge of the organic encapsulation layer is located between the pixel array and the second dam. 
     
     
       11. The display apparatus of  claim 9 , wherein the inorganic encapsulation layer comprises a first inorganic layer and a second inorganic layer, the organic encapsulation layer being between the first inorganic layer and the second inorganic layer, and
 wherein a portion of the second inorganic layer is in direct contact with a portion of the first inorganic layer at a region over the first dam or the second dam. 
 
     
     
       12. The display apparatus of  claim 9 , further comprising an inorganic insulating layer over the substrate and below the pixel array, and wherein the first dam and the second dam are over the inorganic insulating layer. 
     
     
       13. The display apparatus of  claim 12 , wherein the inorganic insulating layer comprises a stack structure comprising inorganic materials. 
     
     
       14. The display apparatus of  claim 13 , wherein a portion of the inorganic encapsulation layer is in direct contact with a portion of the inorganic insulating layer at a region between the first dam and the second dam. 
     
     
       15. The display apparatus of  claim 1 , wherein the hole is at least partially surrounded by the pixel array in a plan view. 
     
     
       16. A display apparatus comprising:
 a substrate having a hole; 
 a pixel array comprising a plurality of pixels arranged around the hole, wherein each of the plurality of pixels comprises:
 a first electrode; 
 a pixel defining layer which includes opening overlapping the first electrode; 
 a second electrode over the first electrode; and 
 an intermediate layer between the first and second electrodes; 
 
 an encapsulation layer over the pixel array, the encapsulation layer comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; 
 a touch electrode over the encapsulation layer; 
 a touch insulating layer over the encapsulation layer; and 
 at least one dam between the pixel array and the hole, the at least one dam is covered by the first inorganic layer and the second inorganic layer. 
 
     
     
       17. The display apparatus of  claim 16 , wherein an edge of the organic layer of the encapsulation layer is located between the pixel array and the hole. 
     
     
       18. The display apparatus of  claim 16 , wherein a portion of the touch insulating layer extends toward the hole and is over the at least one dam. 
     
     
       19. The display apparatus of  claim 16 , wherein a portion of the second inorganic layer of the encapsulation layer is in direct contact with a portion of the first inorganic layer of the encapsulation layer. 
     
     
       20. The display apparatus of  claim 19 , wherein a direct-contact region of the portion of the first inorganic layer and the portion of the second inorganic layer is over the at least one dam. 
     
     
       21. The display apparatus of  claim 16 , further comprising a buffer layer over the substrate and below the pixel array. 
     
     
       22. The display apparatus of  claim 21 , wherein the buffer layer comprises an inorganic insulating material. 
     
     
       23. The display apparatus of  claim 21 , wherein the at least one dam comprises a first dam and a second dam that are spaced apart from each other on the buffer layer. 
     
     
       24. The display apparatus of  claim 23 , wherein a concaved-valley is between the first dam and the second dam. 
     
     
       25. The display apparatus of  claim 24 , further comprising an organic material layer over the concaved-valley.

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